<template>
  <div>
    <ul class="icons">
      <swiper :options="swiperOption">
        <swiper-slide v-for="(page, index) of pages" :key="index">
          <li class="icon" v-for="item of page" :key="item.id">
            <div class="icon-img"><img :src="item.imgUrl" alt=""></div>
            <p class="icon-desc">{{item.desc}}</p>
          </li>
          </swiper-slide>
      </swiper>
    </ul>
  </div>
</template>

<script>
export default {
  name: 'homeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style scoped>
 .icons >>> .swiper-container{
    height: 0;
    padding-bottom: 50%;
    overflow: hidden;
  }
  .icon{
    width: 25%;
    float: left;
    padding-bottom: 25%;
    overflow: hidden;
    position: relative;
    height: 0
  }
  .icon-img{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 22px;
    box-sizing: border-box;
    padding: 5px;
  }
  .icon-img img{
    display: block;
    margin: 0 auto;
    height: 100%;
  }
  .icon-desc{
    position: absolute;
    bottom: 0;
    line-height: 22px;
    height: 22px;
    color: #333;
    text-align: center;
    width:100%;
    font-size: 16px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
</style>
